Rotary floor-machine.



R, A. PONSELLE.

RDTARY FLOOR MACHINE.

APPLICATION min Aue.2. 1914.

atented J une 5, 1917.

ROBERT A.` PONSELLE, OF NEW YORK, N. Y.

ROTARY FLOOR-MACHINE.

Specication of Letters Patent.

Patented June 5, '1917.

Application led August 26, 1914. Serial No. 858,730.

To ZZ whom it' 'nmje/ concern.'

Be it known that I, ROBERT A. PoNsuLLu, a citizen of France, andresident of the borough of Irlanhattan, in the city and State of NewYork, have invented a new and useful Improvement in RotaryFloor-Machines, of

which the following is a specification.

My invention relates to a device adapted to be used in connection with arotaryfioor machine and controlled and operated there-` by, with theobject in view of providing a device that will scrape, plane or surfacea floor quickly and economically.

.f1 fru'ther object is to provide a device that will carry one or moreknives or scrapers which may be independently adjusted as well asindependently removed from the device.

lVith these objects in view, myinvention consists in certain features ofconstruction, forni and arrangement of the several parts as will behereinafter more fully described and pointed out in the claims.

A practical embodiment of my invention is represented in theaccompanying drawings, in which- Figure 1 represents a side elevation ofmy device attached to a motor for rotating it,

Fig. 2 represents an inverted plan of the same,

Fig. 3 represents in detail a transverse central section taken `in theplane of the line A-A of Fig. 1, and

Fig. 4 represents a horizontal section taken in the plane of the lineB-B of Fig. 1.

The device comprises a frame having an upper plate l and a lower plate2, which plates are spaced apart by means ofbosses 3 cast on theplate 1. y

The lower plate 2 is secured to the upper plate l by means of screws 4lcountersunk in the plate 1 and threaded into the bosses. T his plate 2is cut away at 5 for the reception of holders 6 adapted to receiveknives or scrapers 7, adjustably held therein. In the present instance,I have shown three, but

y it will be understood that I may use one or The scraper 7 isadjustably held in the throat 6* of the holder by means of a swing ingclamp 13 pivoted at ltupon opposite sides of the throat.

The clamp 13 is provided with a swinging member 15 pivoted at 16, whichvmember secures the knife or scraper' vertically in position by means ofa thumb screw 17 threaded in the member with the end of the screwengaging the scraper, thereby forcing the member to rock on its pivot 16and pinch the scraper between the clamp 13 and memi bers 15 at a pointbelow the pivot 16.

The radial adjustment of the clamp 13 is accomplished by means lof anadjusting screw 18 pivoted to the `clamp at 19, the free end of whichscrew passes through a lug 20 onthe holder and has thumb nuts 21, 22,located upon opposite sides of the lug 20, for locking the screw andclamp in position. The holder is also provided with a sole 23 of hardwood, ber, or other suitable material, which is secured by bolts 24:countersunk therein and nuts 25. The sole 23 also has a throat 26 whichregisters with the throat 6* of the holder.

The cutting edges of the several Scrapers 7, as shown in Figs. 2 and 4c,are arranged at different angles to each other, for instance, the edgeof one scraper is shown radial with respect to the circular path ofmotion, while the other two scraper edges are shown oblique to the pathof motion, but I wish it understood that I may arrange all the cuttingedges radial or all oblique to the path of motion.

The upper plate` 1 is provided with a i clutch member 27 which isadapted to engage a clutch member 28 secured to a driving disk 29. Thisdisk 29 is horizontally mounted on a hollow shaft 30 journaled in a gearcasing 31 fixed to the motor 32. Rotary motion is imparted to the` disk29 from the drive shaft 33 of the motor through a train of gears 34,'35, 36, 37, of which the gear 37 is mounted upon the hollow shaft 30.

A handle 38 is fixed to the gear casing 30 with which the operatorpushes the machine over the floor to be scraped or planed.

In operation, the scrapers are yadjusted in their holders and theholders locked in the lower plate 2. 'Ihe upper plate carrying the lowerplate with its holders and Scrapers is then placed in position to beclutched by the driving clutch member 28 on the disk 29 engaging themember 27. The motor loo wyuw

may now be started and motion will be transmitted through the train ofgears to the disk and thence to the upper and lower plates, when thescrapers will be caused to travel in a circular path, while the operatorpasses the machine over the floor from place to place.

lt has been found, that, at the high speed at which the Scrapers aredriven, a vast amount of floor may be surfaced or linished in a veryshort time, thereby saving considerabl'e time, labor and expense.

lt is evident that slight changes might be resorted to in the form,construction and arrangement of the several parts without departing'from thespirit and scope of my invention; hence l do not wish to limitmyself strictly to the structure herein set forth, but

l.What I claim is 1. A device or' the character described comprising aframe provided with upper and lower plates, holders having a tongue andgroove connection with the lower plate, means for locking the holders inthe lowei` plate, scrapers mounted in said holders, a clutch member onthe upper plate, and means engaging the said clutch member :tor rotatingthe frame.

2. A device ofthe character described comprising a frame providedwith'upper and lower plates, holders having a tongue and grooveconnection with the lower plate, spring actuated means for locking theholders in the lower plate, Scrapers mounted in said holders, a clutchmember on the upper plate, and means engaging the said clutch member forrotating the iframe.

3. A device of the character described comprising` a frame provided withupper and lower plates, holders having a tongue and groove connectionwith the lower plate, means for locking the holders in the lower plate,said means comprising a pin on the holder and a spring secured to saidlower plate and having a hole for the reception of said pin, Scrapersmounted in said holders, a clutch member on the upper plate, and meansengaging the said clutch member for rotating the frame.

in testimony, that l claim the foregoing as my invention, l have signedmy name in presence of two witnesses, this seventeenth day of August,1914.

ROBERT A. PGNSELLE.

Witnesses r F. GEORGE BARRY, C. S. LUNDGREN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of latents, Washington, D. C.

